A/T Fluid color changes over time - Toyota Yaris Forums

Lux · 07-10-2012, 10:08 PM

The correct method of testing ATF is to smell it and feel it between your fingers. Worn out fluid will smell burned and exhibit a grainy texture to it, like very, very fine sand. Discolouration is only the chemical breakdown process of the fluid dye and is not always a suitable indication of fluid condition. For instance, Hyundai ATF looks like diarrhoea at 15'000 km but smells, feels, and functions perfectly fine...

Major contributing factors to ATF service intervals are load (towing), driving aggression, and operating temperature (such as from a dysfunctional ATF cooler).

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Hang Time: Exploiting ECU Fuel Maps for Fuel Efficiency	BailOut	Fuel Economy Forum	20	11-13-2013 08:11 AM
So when DOES the transmission fluid need to be changed	dutchy999	DIY / Maintenance / Service	12	09-06-2011 05:18 PM
"Klunk!" One Time Noise When Backing Up	jmharn	General Yaris / Vitz Discussion	45	11-24-2008 03:43 PM
CSCS Track Days – New for ’07 Open Lapping / Time Attack (Drag, Show, Drift)	krazykoncepts	Canada	0	05-18-2007 03:10 PM
long time lurker, first time poster	tekmoe	New YARIS Purchase Forum	1	10-04-2006 12:43 AM

07-10-2012, 10:08 PM	#4
Lux Drives: NCP91 Join Date: Jul 2012 Location: Markham, Ontario, Canada Posts: 114	The correct method of testing ATF is to smell it and feel it between your fingers. Worn out fluid will smell burned and exhibit a grainy texture to it, like very, very fine sand. Discolouration is only the chemical breakdown process of the fluid dye and is not always a suitable indication of fluid condition. For instance, Hyundai ATF looks like diarrhoea at 15'000 km but smells, feels, and functions perfectly fine... Major contributing factors to ATF service intervals are load (towing), driving aggression, and operating temperature (such as from a dysfunctional ATF cooler).